Carrie Underwood's personal trainer reveals how she plans to whip singer back into shape just weeks after she welcomed first child Read more: http://www.dailymail.co.uk/tvshowbiz/article-3004916/Carrie-Underwood-s-personal-trainer-reveals-plans-whip-sing

New mom Carrie Underwood is determined to get her pre-baby body back – and her personal trainer has outlined her battle plan exclusively to Dailymail.com.

The 31-year-old country crooner welcomed her first child Isaiah Michael with husband Mike Fisher on February 27 and in the build up to the birth she said how eager she was to 'reclaim' her slim figure.

Just weeks before the birth, the former American Idol winner, who announced the birth of her baby boy via an Instagram photo, told People magazine: 'I'm looking forward to reclaiming my body. I've been saying it's been on loan for the past many months … I'm excited to take it back.'

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Battle plan: Carrie Underwood (pictured in December) gave birth to her son on February 27 but is keen to get back into shape with the help of her personal trainer Erin Opera

In an exclusive interview with Dailymail.com Carrie's personal trainer Erin Oprea shared the first-time mom's workout tips and plans to shed her baby weight – which included a rigorous workout regime DURING her pregnancy.

Speaking on Carrie's workouts while pregnant, she said: 'She stayed pretty normal for a long time and then we kinda changed it. We cut out some of the jumping. [But] she's pretty much still able to do most things and go towards the end.'

New moms are recommended to wait at least six weeks after giving birth to begin exercising, so Erin's focus for this period is healthy eating while waiting to be cleared for exercise by the doctor.

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Leave it to the pros: Carrie's personal trainer Erin worked with the country star throughout her pregnancy and is helping her snap back into shape

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Ease back into it: The fitness coach encourages women who have just given birth to go slow after the six-week period of no exercise is up

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Strength: Erin gave Carrie a popular Tabata exercise she's used for pregnant clients, which includes two round of squats, curls, sumo squats, and bent over rows, for twenty seconds each, for a total of eight rounds

She explained: 'After a woman has her baby they have a little while that they can't work out. So at that point you want to really start focusing on that your eating is cleaned up.

'As soon as your doctor approves you and clears you to work out, you need to start slowly incorporating it and not go in at 100 percent because then you're going to risk getting an injury. Make sure you're well hydrated and eating clean.'

After getting the all clear by a doctor, the Nashville-based trainer says it's important to utilize both cardio and weight training exercises to try and get back to a healthy pre-baby weight.

Erin explained: 'I would incorporate both. They would both start light. They wouldn't start a super intense weight workout or a super intense cardio workout. They would both start with some walking, some hill walking, things like that. Then some basic stuff… some squats and go slowly until you start feeling normal.

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Fit: Carrie, 32, says she is eager to 'reclaim' her slim figure. She is seen pre-pregnancy in April 2014

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Musclebound: In April the singer showed off her fantastic form with some impressive pull-ups in a snap taken by Erin

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'Make sure you're well hydrated and eating clean' the fitness expert gave her tips on how new moms can ease their way back into a fitness regime

She added: 'Sprints and interval training is gonna be a good way to lean down quickly.'

Erin outlined one of Carrie's favorite styles of training, revealing: 'We do lots of tabatas. I do tabatas with all my clients.

'Tabata is a four-minute workout. It's 20 seconds of intense bursts exercise followed by ten seconds of rest for eight rounds. It's my favorite style of training right now.'

Erin gave a popular Tabata exercise she's used for pregnant clients, which includes two round of squats, curls, sumo squats, and bent over rows, for twenty seconds each, for a total of eight rounds.

While many new moms often struggle to find the time to workout, Erin stresses the importance of 'incorporating fitness into your everyday life'.

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Solid advice: The Nashville-based trainer says it's important to utilize both cardio and weight training exercises to try and get back to a healthy pre-baby weight

She shared further tips that will help Carrie: 'A lot of people with kids don't have two hours to go to the gym after they get off an eight to five job. So come home and do short workouts. Try and be active and not lay on the couch all evening. You can get just as much in at home.

'It doesn't have to be an hour. You mix it in anytime you can. You don't have to spend your time driving to the gym. You can do everything at home, or at your children's sports. You can get yourself up from your desk and do a quick four minute Tabata to wake yourself up and burn calories.'

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Didn't stop: At nearly five months pregnant it was easy to see the blonde beauty was keeping fit back on September 27

Despite Carrie's eagerness to slim down, Erin stresses women to focus more on feeling 'comfortable in your own skin'.

Speaking on the Hollywood stigma that 'thin is in' she said: 'It's not all about being thin, I think it's about feeling good.

'You need to get to where your body wants to be, to where you feel comfortable in your own skin. But it's also about being healthy and developing muscle. I feel like skinny is kind of out, muscle is more in.'